Stock code:600312       Price:               |                         |         

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Company name: henan pinggao electric co. LTD

Address: Henan province of pingdingshan city

south ring road 22

Mail editor: 467000
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400-6700-312

PRODUCT

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TianJin
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Name

VI040312

Summary information
Specification: Vacuum Interrupter VI040312
Affiliate classification
Description

Specification: Vacuum Interrupter VI040312

Electrical Data

Rated voltage, 50 Hz

40.5kV

Rated normal current

1250A

Rated short-circuit breaking current, symm.

25/31.5kA

Max. DC-component

50%

Rated short-circuit making current

63/68kA

Rated peak withstand current

63/68kA

Rated short-time withstand current, 4s

25/31.5kA

Capacitive switching acc. to GB1984
single 630A,back to back 400A

C2Class

Rated Insulation Level

Rated power-frequency withstand voltage

95/118kV **

Rated lightning impulse withstand voltage

185kV**

Thermal Data

Circuit resistance at lowest rated contact force  

≤11μΩ

Max. permitted temperature at movable stem

170ºC

Electrical Life

Breaking operations of rated short-circuit breaking current

50/30times

Mechanical Data

Contact stroke

20±1mm

Max. over travel

≤2mm

Maximum rebound during opening

≤2mm

Average opening speed (0-2 mm stroke)

1.5±0.3m/s

Average closing speed (2 mm- contact making)

1.2±0.4m/s

Max. bouncing duration

2ms

Opening and closing non-simultaneity of three phase contacts

≤1ms

Rated added external contact final force

2400±200N /3400±300N

Added external contact force at contact touch point

≥2000/2700N

Closing force due to bellows and atmosphere

240±30N

Force required to hold contacts open at full stroke

290±50N

Contact erosion limit

3mm

Mass of moving contact

1.9kg

Weight of interrupter

6.5kg

Storage life

20years

Mechanical life

10000times


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